The thermal capacitance of the nonmetallic armour bedding layer has to be divided into two parts using the Van Wormer factor.

Symbol
$Q_{\mathrm{ab_{\mathrm{1}}}}$
Unit
J/m.K
Formulae
$1.0 \cdot 10^{-6} A_{\mathrm{ab_{\mathrm{1}}}} \sigma_{\mathrm{ab}}$
Related
$A_{\mathrm{ab_{\mathrm{1}}}}$
$\sigma_{\mathrm{ab}}$
Used in
$Q_{\mathrm{B_{\mathrm{ab1}}}}$
$Q_{\mathrm{B_{\mathrm{ab2}}}}$
$Q_{\mathrm{t}}$